Demand is also growing, but I doubt the solution is to bet on something that will be ready 15 years from now, when either solar and batteries will have solved the problem, or we’re going to be in serious trouble.
Even China is betting on solar (and batteries) much more than on nuclear.
https://ourworldindata.org/electricity-mix
China is betting on everything: solar, wind, hydro, coal, nuclear.
China is building the most solar, most wind, has build the biggest hydro power plants, is building most coal power plants, is building most nuclear power plants.
I agree that China is betting on solar (and batteries) much more than on nuclear, on the other hand China is currently betting more on coal than nuclear. Decarbonization is not high priority for China, the priority is producing cost effective energy from domestic sources, be it domestic coal, solar, hydro, wind.